Fireproof window construction.



No. 871,129.' PATENTED Nov. 19,' 1907. E. H. LUNKBN N c. M. GONKLIN. PIREPROOP WINDOW CONSTRUCTION.

APPLICATION FILED FEB. 15, 1907.

which will be very compact, and still be corners, than those heretofore constructed and removal of the glass.

a detail view showing the top bar slightly tail showing the construction of the meeting `U-shaped1 piece 27 is constructed of one vsides of the frame.

, UNITED sTATEs PATENT oEEIoE.

EDMUNDH.' LUNKEN AND CHARLES M. CONKLIN, OF CINCINNATI, OHIO, ASSIGNORS, DY

DIRECT.AND MESNE ASSIGNMENTS, TO THE LUNKEN STEEL WINDOW CO., A CORPORAJ TION OF OHIO.

No. 871,129. l Original application illed November 22, 1908.

' Serial No.

To all whom 'it may concern; n Be it known that we, EDMUNDH. LUNKEN and CHARLES M. CONKLIN, citizens of the United States, residing at Cincinnati, Ohio, have invented certain new and useful Improvements in Fire roof Window Construction, of which the fo lowing is a specification.

Our present invention relates to improvements in metallic window sash designed more'especially for use in fire roof windows such as shown and described, or example, in the l`application filed by us Nov. 22 /06, #344643, of which this applicationis a division.`

Among the objects of the .invention are to provide `an improved construction of sash more rigid and stronger, especially at its and which will permit of the ready insertion With these andother objects. in view the inventionincludes the various features of construction, and arrangement and combination of parts hereinafter described and particularly setforth in the appended claims.

An embodiment of the invention is illustrated and described in theaccompanying `drawingsin which only a lower 'sash 1s shown in front elevation for convenience.

Figure 1 is a face view of a sash. Fig. 2 is raised. Fi 3 is atransverse vertical section of bot sashes. Fig. 4 is an enlarged detail view of one of the lower corners of the sash, and Fig. 5 is an enlarged sectional derails. Fig. 6 is a sectional detail.

A sash, as shown in these drawings, con-A sists of outerstrips 25 and inner stri s 26, between which is interposed the U- aped frame 27, referably made of channel iron, as clearly s own in Fig. 1, 3 & 5. This piece, and continues entirely around three The inner and outer rames25 and 26 are secured to the U-shaped frame 27, preferably by means of rivets 28,-ex

between the inner and outer frames 25 and 26,

y Specification of Letters Patent.

into `which glass may be slid from the top.

FIBEPROOF WINDOW CONSTRDCTION.

Patented Nov. 19, 1907.

Serial No. 344,643. Divided and this application filed February 15. 1907- 357.641. 4 To securely hold the glass in place, a removable bar 29, preferably of c annel form in cross section, is employed, which closes the opening at the to between the' side frames 25 and 26, and ies upon the ends of the U-sha ed frame 27 overlapping the same, for t e purpose hereinafter described.

Where it is desired to use more than one glass in a single frame, we provide a muntin consisting of the center piece 30 (which lies between the inner and outer frames 25 and 26 at-the top and bottom, where it is secured by rivets) and side plates 31, which overlap thiscenter ieee 30 and are riveted thereto. Any suitab e filling strip or material may be used to form a seat for the glass as indicated at 92 It will be observed that the U-shaped frame 27 lies inwardly, and is removed from the outer edges of the side frames 25 and26 on three sides, thereb' formin a channel on the three sides of the rame. he horizontal or bottom portion of the U-shaped frame 1s removed from the lower edges of the frames 25 and 26, to form a channel into which a bead or edge piece 32vof the sill projects to form a tight joint. The outer face of the bead 32 is disposed in a vertical plane, so as to lie flat against the inner face of the frame 25, making it practically impossible for water to work its way u through between the parts. The removablh piece 29, at the uper edge of the top sash, is likewise removed Prom the outer edges of the frames 25 and 26, forming a channel the object of which is to provide a weather proof joint between the top cross piece coverplate 17 and the u er sash, inasmuch as the bead 33 lies wit in this channel when the sash is closed.

As a further protection against the weather,

spring brass`strips 34 are' rovided within t e top channel of the upp r sash and the bottom channel of the lower sash. The brass weather strip within the bottom channel of the lower sash, is held in'place b means of the bar 87, and lies between this bar ,87 and bottom of U-shaped frame 27. The bar 87 is removably held in place by screws 88, and projects beyond the side frames 25 and 26, for the purpose hereinafter described. At the top of the u per sash, the Weather strip is removably eld between the removable bar 29 and one of the frames 25-or 26. When inserting the weather strip for the bottom sash, it is angular in cross section, one end of the angle lying -between the bar 87 and bottom of U-shaped frame, while the other Yrests against either the frame 25 `or 426, as desired. After the bar 87 is secured in lace, the weather strip is ythen bent over the ar87, as shown in Fig.

.3 so that the free end` bears against the bead 32. The 'Weather strip for the top sash,

A however, can be placed 1n position after having first been formed to the desired shape, or

` vit may be inserted in a fiat form, and after being secured'in lace between the removable bar 29 and either of the side frames 25 or 26', `can then be bent to shape.

- The lower crosspiece of the -inner sash frame 26 has its upper edge -61 turned over,

as illustrated in Figs. 1', 3, and 4, the object being to provide a'continuous handle, by which means the lower sash can be easily raised, thereby eliminating the expense and time of attaching separate handles. The

' resence vof this handle, which extends the ength of the lower bar, terminating at the linner edges of` the' vertical members of the lower-sash, as shown in Fig., 4, also tends to strengthen and stiffen the frame, particularly I' when the frame is of great width.

An important feature in the construction of the sash, lies in the method employed of securing the side frames 25 and 26 to the U- 4shaped frame at the corners. It will be observedthat the bottom piece 92, of the side frames 25 and 26'embraces the edges of the side ieces 90, the purpose of this being to ,shaped in cross-section, whic enab e the placin of both rivets 91 and 91a (one on eit er si e of the corner formed by i the `U-shaped frame) in the bottom piece, as

shown in Fig. '4, thereby greatly increasing the strength of these corners and lnsurmg a right-an lar frame.

The c annels at the sides of the sash,

of sprm brass 36, bent to conform to the 'shape o the pressed steel guides. They,

however, continue around the open end of vthese steel guides, as clearly shown in Fig. 6 and bear against the U-shaped frame 27.

A weather tight joint is efectually made A by means of these-noncorrosive coverings 'for the guide strips, owing to the fact that the)r bear against the U-shaped frame 27,

. which forces them into the guide rooves .above mentioned application. 'of the spring brass strips 36, 'however,.is not of the coverplate for the side mem ers of the main frame, as fully set forth in our The tension armas.

severe enough to cause too much friction between the bearing surfaces, and therefore the sash can be operated withl perfectease and -still maintain a tight joint. These guidJ strips are held in place between the extending ends of the removable bar 29 and the weather strip retaining piece' 87 ,which project suiiciently beyond the U-shaped frame for this purpose. In both ends of the removable bar 29 holes are provided,

'through which the ropes or cables for -the weights'extend, and are knotted or otherwise secured.

Suitable meeting rails ,are provided. between theupper and lower sash to present a weather tight joint. In this instance, we have formed them of the same 'piece as the upper barof the lower sash side frame 26 and the lower ba'r ofthe upper sash of the frame 25, as. shown in Fig. 5. They consist of similar reversely arranged portions 25a and 26a overlapping each other when the'sash are closed. As these portions 25EL and 26a are of the same piece as the upper and lower members of the top and bottom sash respectively, it is onlynecessary to bend them to the desired shape, eliminating the resence vofbolts or rivets to securethese meeting rails,

and greatly increasing the strength and rigldity of these particular members, vespecially should the sash be of great width. To

insure a positive joint-between these meeting ralls, we employ sprlng brass weather strips and 95a soldered or otherwise 'se- Y cured to the meeting rails on their outer sides. As they are bent around the edge of said meeting rails as shown in Fig. 3 & 5 and ,their loose ends permitted to bear against each other when the sash are closed, a positively tight joint is obtained at a reduced cost and a small amount of labor.

Having thus described our invention what we claim is 1. In fire 'proof window construction, a sash comprismg facing strips, a U-shaped frame of one plece between said strips on three sides, formin a channel, aglass pane removabl)T -seated 1n the channel, and a remvable spacing bar closing the remaining s1 e.k

'2. In re proof window construction, a sash comprising facing strips, a U shaped frame of one plece between said strips on` three sides, forming a channel, a glass pane removably seated in the channel, and a removable spacing barclosing theremaining side, and rivets passing through the facing stri s and U-shaped frame and permanently holding said parts together. 4

3. In iire proof Window construction, a sash comprising inner and outer framessaid frames com osed of two horizontally and I twoY vertica y disposedl members, spacinvr pieces between them, the lower corners o which are bent at right angles, one of each of on one of its said members o posite to each other, being secured to bothllegs of one of the angle corner pieces. w 4. In fire proof window construction, a sashcomprising facing strips with an interposed -spacing member, the strips extending on one of its sides beyond the spacing member and a removable sash guide bar being located in the channel formed by the said extended edges of the facing strips.

5.` In fire proof window construction, a sash comprising facing strips with an interposed spacing member, thestrips extending sides beyond the spacing member and a yielding sash guide bar located in the channel formed by kthe said extended edges of the facin strips.

6. In ire proo window construction, a sash comprising metallic glass retaining facing strips suitably secured together one of the lower strips of which has a turned over portion forming a handle.

7 In fire proof Window construction, a sash comprising facing stri s, a U-shaped bar between said strips on t ree sides, a removable bar on the fourth side, and a muntin comprising a center bar secured at its ends between the facing strips and su plement facing strips secured to opposite'faces of the center bar.

8. lIn fire proof window construction, the

s combination of a sash having a horizontall linga groove and an o disposed member, an inclined meeting rall carried thereby, and formed of the same piece as the horizontal member and providpositely converging meeting rail carried by t e other sash, adapted to e'nter said groove and contact with the rst named rail.

9. A-sash having a U-shaped frame around three sides thereof, and lsecured between Han es projecting inwardly toform a groove for t e reception 'of a pane of glass, inner and outer facing strips secured to the projecting ends of the U-shaped frame at the open side plates of the sash frame,

thereof, forming a slot through which the pane of glass is inserted, and a removable spacing bar to cover said slot.

10. In fire proof window construction, a sash frame having facing plates and muntin composed of inner and outer plates and an interposed spacing bar providing grooves on opposite sides,'sa1d s acing bar having projecting ends secure between the acing substantially as described. 11. In iire proof window construction, a sash frame having lass receiving channels and an open edge 01 the insertlon of the glass, a removable bar closin said open edge, a metal weather strip locatedg against the face of the frame, and bolts passin through the frame, removable bar and pac g stri for holding said parts together, substanti y as described.

12. In fire proof window construction, upper and lower sash frames, havin lass receiving channels and openings in t elr meeting ra1ls for the insertion of the glass, removable'bars closing said openings, and coacting metal packing strips carried by said rails, one of said packing strips being of spring metal, substantially as described.

13. In fire-proof window construction, an

upper and a lower sash, a downwardly and outwardly inclined rail or flange carried by the upper bar or member of\the lower sash, a

lreversely arranged rail or ange carried by the lower bar or member of the upper sash, and spring packing strips carried by the edges of these rails or as described. n In `testimony whereof, we aix our signa.` tures in presence of two witnesses.

EDMUND H. LUNKEN. CHAS. M. CONKLIN.`

Witnesses:

WM. H. MUENCH, E. E. WINTER.

flanges, substantially i 

